Files
binutils-gdb/gdb/loongarch-tdep.h
Hui Li 33afccfaa8 gdb: LoongArch: Add system call support for process record/replay
The process record and replay function also need record Linux
system call instruction. This patch adds LoongArch system call
number definitions in gdb/arch/loongarch-syscall.h, and adds
loongarch_linux_syscall_record() in gdb/loongarch-linux-tdep.c
to record system call execute log. With this patch, the main
functions of process record/replay and reverse debugging are
implemented.

The LoongArch system call numbers definitions are obtained from Linux kernel.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/asm-generic/unistd.h
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/loongarch/include/asm/unistd.h

Signed-off-by: Hui Li <lihui@loongson.cn>
Approved-By: Guinevere Larsen <guinevere@redhat.com> (record-full)
Approved-By: Tom Tromey <tom@tromey.com>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
2024-11-25 19:15:51 +08:00

55 lines
1.9 KiB
C

/* Target-dependent header for the LoongArch architecture, for GDB.
Copyright (C) 2022-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef LOONGARCH_TDEP_H
#define LOONGARCH_TDEP_H
#include "gdbarch.h"
#include "arch/loongarch.h"
#include "regset.h"
#include "elf/loongarch.h"
#include "opcode/loongarch.h"
/* Register set definitions. */
extern const struct regset loongarch_gregset;
extern const struct regset loongarch_fpregset;
extern const struct regset loongarch_lsxregset;
extern const struct regset loongarch_lasxregset;
extern const struct regset loongarch_lbtregset;
/* Target-dependent structure in gdbarch. */
struct loongarch_gdbarch_tdep : gdbarch_tdep_base
{
/* Features about the abi that impact how the gdbarch is configured. */
struct loongarch_gdbarch_features abi_features;
/* Syscall record. */
int (*loongarch_syscall_record) (struct regcache *regcache,
unsigned long syscall_number) = nullptr;
/* Return the expected next PC if FRAME is stopped at a syscall instruction. */
CORE_ADDR (*syscall_next_pc) (const frame_info_ptr &frame) = nullptr;
};
extern int loongarch_process_record (struct gdbarch *gdbarch,
struct regcache *regcache, CORE_ADDR addr);
#endif /* LOONGARCH_TDEP_H */